Hi new here. I have a project that has many 6v lights on a simple circuit. I need to add a way to complete a different circuit when a light comes on or voltage is sent though the line.
When any of the lights go one? Or a particular light goes on?Hi new here. I have a project that has many 6v lights on a simple circuit. I need to add a way to complete a different circuit when a light comes on or voltage is sent though the line.
I don't think it would due to the grounds on each board are separate. Would like to keep the two isolated in fear of one killing chip on the other. The main board that is the country board was made in 1980 and some chips are next to impossible to find replacements for. Cost wise the photodiode could be my best bet.Please see the attachment. Would this work?
Then what you can do is do it two stages. For all of the buttons that are to play a given sound you use a "wired-OR" arrangement in which any one of the group can make current flow in the input of the optocoupler. Then each optocoupler output is wired to activate one of the sounds. That makes it possible to have arbitrary arrangements in which, say, Light A makes Sounds 1 and 3 while Light B makes Sounds 2, 3, and 5.Was thinking 10 would play the same sound. As each bulb is on sequence after each other. They are score points lights for a pinball machine.
The produce a tiny amount, but the better way to view them, for most applications, is a light controlled resistor. You put them in a circuit so that they are reverse biased. Normally this would mean that no current (other than some tiny leakage current) flows. As light impacts the diode it allows some current to flow "backwards" through the diode. The more light, the more current that can flow. In a switching optocoupler you have an LED and a photodiode (or phototransistor, same basic idea) within a package so that when you pass current through the input LED the light from it makes the output side appear as a relatively low resistance to the circuit that it is a part of.Small question. Dose a photo diode produce any electricity when on? Some info makes them sound like a mirco solor panel.
You could use a series silicon diode to drop just enough voltage for the B/E junction of a transistor, this can sense one or any number of the lamps drawing current.ok here is a quick drawing.
http://s10.postimg.org/x1oboi455/temp.png
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